<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <div class="box" id="mybox" name='name-box'>
        hello world
        <p>p1</p>
        <!-- 注释语句 -->
    </div>
    <div class="box" id="mybox1" name='name-box'>
        hello world
        <p>p2</p>
        <!-- 注释语句 -->
    </div>
    <form action="">
        <label for="">A</label><input type="radio" name='first'>
        <label for="">B</label><input type="radio" name='first'>
    </form>
    <div class="grandfather">
        <div class="parent">

            <div class="child">
                <a href="">一个链接</a>
            </div>
        </div>
    </div>
</body>

</html>